United States, 1860–1865

Democracy · Republic · North America · Industrial Age era

Civil war: extreme social polarization and internal conflict while institutions endure.

Lincoln’s election on a free-soil platform triggered the secession of eleven slaveholding states and civil war. The Union mobilized industrial and demographic superiority in the deadliest conflict in national history. Emancipation shifted the war’s legal basis in 1863. Union victory preserved the federation and abolished slavery, at the cost of roughly 750,000 dead and a contested Reconstruction.

Open United States 1860–1865 in the interactive 3D atlas →

Dominant patterns

  • Democratization
  • Great-Power Rivalry
  • Revolutionary Risk
  • Militarization

Political-science factor profile

Each factor 0–100; higher = stronger authoritarian / crisis pole (except institutional stability, where higher = stronger institutions).

Centralization of Power15
Media Control22
Repression33
Nationalism72
Militarization84
Economic Stress50
External Conflict20
Cult of Personality20
Elite Fragmentation78
Institutions83
Social Polarization96
Corruption & Patrimonialism18
Ideological Mobilization45
External Sovereignty96

Economy & society

GDP per capita$4570 (intl-$)
GDP growth+1%/yr
Population35.6M people
Share of world population2.7%

Closest historical twins

The country-eras whose structural profile most resembles United States 1860–1865, by similarity score (0–100).

  1. United States, 2008–2024 – similarity 83/100 · shared: Democratization, Great-Power Rivalry, Militarization
  2. United States, 1929–1939 – similarity 79/100 · shared: Democratization, Great-Power Rivalry
  3. United Kingdom, 1815–1837 – similarity 77/100 · shared: Democratization
  4. Germany, 1918–1923 – similarity 77/100 · shared: Democratization, Revolutionary Risk
  5. France, 1789–1799 – similarity 76/100 · shared: Democratization, Revolutionary Risk, Militarization
  6. Austria-Hungary, 1900–1918 – similarity 76/100 · shared: Revolutionary Risk, Militarization
  7. Dutch Republic, 1600–1672 – similarity 73/100 · shared: Democratization, Great-Power Rivalry, Militarization
  8. United States, 1968–1980 – similarity 73/100 · shared: Democratization, Great-Power Rivalry, Militarization

What followed

  • Preservation of a unified state.
  • Abolition of slavery and Reconstruction of the South.